Question

choose the correct answer. what are substrates? a part of the lungs that helps with oxygen exchange the products of chemical reactions the reactants (ingredients) of enzyme - catalyzed reactions

Explanation:

In biochemistry, substrates are the starting - materials (reactants) that bind to the active site of an enzyme and are converted into products during an enzyme - catalyzed reaction.

Answer:

the reactants (ingredients) of enzyme - catalyzed reactions